Waste-valve mechanism



H. 'w. KUEHL WASTE VALVE MECHANISM Oct. 23, 1928.

Patented Get. 23, 1928.

nears s'rrr;

g I 1,69,34 ear tries.

HERMAN 1V. KUEHL, OF CHICAGO, ILLINOIS, ASSIGNQR 'IO BRASS PRODUCTS COM- PANY, A COPABTNERSHIP CONSISTING OF HARRY W. ANDERSGN AND SAID HER- MAN W. KUEHL, OF CHICAGO, ILLINOIS.

WASTE-VALVE MECHANISM.

Application filed November 21, 1927. Serial No. 234 574.

This invention relates to a waste valve such as may be employed advantageously with bath tubs, lavatories, etc., and is particularly concerned with an operating mechanism therefor which may be readily installed or removed.

The embodiment of my invention set forth in the accompanying drawings and in the description to follow is especially suited for use with plumbing fixtures oi the kind which are employed with built-in bath tubs. lVith such installations, accessibility to the operating parts of a waste valve is greatly reduced in consequence of which there is an increased need for an operating assembly which may be conveniently installed or removed. It is largely to meet such conditions that the present invention has been designed, the objects and purposes served thereby being set forth fully in the specification and claims to follow, taken in conjunction with the accompanying drawing wherein Figure 1 is a vertical section through one end of a tub showing in mixed section and elevation the fittings which constitute the overflow and waste outlet therefrom;

Fig. 2 is an enlarged detail in vertical section of the overflow outlet and parts associated therewith; i

Fig. 3 is a detail in elevation looking into the mouth of the l. at the overflow outlet; and

Fig. l which is a view similar to Fig. 2 shows a modified construction of the operating unit at the overflow outlet.

Referring now to the drawings in detail, in all of which like letters and numerals represent like or equivalent parts wherever used, I have shown one end of a bath tub T with which is associated a vertically disposed stand pipe or overflow tube 5. This tube is connected at its upper end to the tub in the usual manner as by means of an overflow L 6 having a flange 7 which bears against the outer face of the tub wall. The lower end of the overflow tube is connected with a T-litting 8 with which is also connected a pipe 9 leading to the trap (not shown). By this arrangement the pipe 9 may be aligned with the overflow tube. Connectedalso with the T so as to extend from the overflow tube is a waste arm 10 which has connection with a waste shoe 11 wherein is screw-threaded a cage 12 whose head may be flush with the inner face of the tub wall adjacent its bottom. Seated within the cage is a valve 14; having a depending stem15which is slidably received within a guide 16, so as to assure proper up and down movement 01' the valve.

The mechanism by which the present valve vis operated comprises parts such as are illustrated in Figs. 1 to 3. The valve 14 is pro vided on its upper face with a knob or head socket'ed laterally to receive one end 21 of an operatingrod 22. This rod may be joined fixedly to the valve headas by means of a set screw 23. The rod 22 is angled adjacent its lower end 21 so as to extend closely along the bottom and proximate end wall or the tub, as clearly shown in Fig. 1. At its upper end the rod is enlarged to provide a end of a manipulating rod 25 having on its socketed head 24 wherein is received the lower 7 upper end a knob or ball 26. The manipulatapertured strainer plate 32 which bears against the inner face of the tub wall. The upper guide includes in its assembly a head having a transverse aperture 83 through which the rod 25 is extended, and a neck 34 ot reduced diameter which joins the head at a shoulder 35. In the center of the strainer plate is an opening through which the neck 34 is inserted to the point where the shoulder 35 engages with the strainer plate. The neck 34 is interiorly chambered and threaded to receive the threaded head 36 of a stud 37 which is adapted for threaded connection with a cross bar 38 extending transversely across the L 6 (see Fig. The stud head 36 confines within the neck chamber a coiled spring 39 which bears against the'head 40 of abutton ll the shank of which extends through an opening in the guide 30 to lie partly within the aperture 33 in the head thereof. The acting end of the button is receivable within an annular groove 42 on the rod 25 tor the purpose of sustaining the same yieldingly in an elevated position.

In use, the valve 14 is in the down position shown in Fig. 1, when the waste outlet is closed. At such times the groove 4C2v in the manipulating rod is disposed some distance below the upper guide 30. To open the valve, itis necessary merely to exert a lifting force upon'the head or knob 26 at the upper end of the manipulating rod. In the ensuing upward movement which liftsthe valve the manipulating rod is steadied within the two guides 30 and 31. After executing a predetermined movement, the button 41 enters the groove 42 to yieldingly sustain the rod in its elevated position. To close the valve a reversal of the movements just described is all that is required.

In the construction shown and described, the up er guide 30 together with its associa-te parts serves several purposes. It provides a mounting for the spring button 41 which, in turn, sustains the rod 25 in an elevated position, and also carries the stud 37 which connects detachably with the cross bar of an L. The upper guide assembly, therefore, is responsible for the connection between the strainer plate and the L, as well as the guiding support for the manipulating end of the valve operating rod.

In Fig. 4, I have shown a modified construction of operating unit assembled with a strainer plate 32 which may have a screwthreaded connectionwith the L 6 in any of the usual ways. This strainer plate is provided with a marginal flange 45 which extends toward the inner face of the tub to rest thereagainst. This flange is cut away in the lower portion of the strainer plate for a desired distance on either side of its center so as to provide an open space for the movement of a link 46 whichhas pivotal connection as at 47 with a crank 48 carried on the inner end of a stem 49 which extends '46 is adapted to rest within the socketed head 24 of an operating rod 22 the same as is illustrated in Fig. 1, and for connection invention, it is necessary that the strainer plate be so disposed in order to provide clearance for the movement of the link 46 the upper end of which is preferably oiiset, as shown, in order to pass rearwardly of the crank 48. By operation of the handle 51 with a consequent turning of the crank 48, the link will raise or lower the valve 14 with which itis connected, all the moving parts being disposed inwardly of the tub exactly as shown in Fig. 1.

I claim: I

1. In combination with a receptacle having interconnected waste and overflow outlets, the latter being provided with a strainer plate and the former with a valve, a lift rod connected with the valve and extending up wardly within the receptacle past the strainer plate, guiding means for the lift rod having a connection with the strainer plate, and a screw device carried by the guiding means adapted to engage with the connection from the overflow whereby to secure the strainer plate in place, substantially as described.

2. In combination with a receptacle having interconnected overflow and waste outlets, the former being provided with a strainer plate and the latter with a valve, a lift rod 7 connected with the valve and extendedto the plate, a guide for the rod associated with the plate, means associated with the guide for sustaining the rod and valve, and means securing the strainer plate to the overflow connection adapted also to connect the guide thereto, substantially as described.

HERMAN W. KUEHL. 

